StudyBlue

StudyBlue is a collaborative learning ecosystem that empowers more than 7 million people to master any subject. Students can connect with others who are on a similar learning journey through a shared library of more than 250+ million pieces of user-generated content. StudyBlue brings together the wisdom of the crowd.
StudyBlue for ESL learners is a free service for creating, studying and sharing flashcards.
The website allows users to upload class study materials, create electronic flashcards to study and share with others, and practice quizzes. StudyBlue allows students to store their notes in the cloud and connect with other students studying English language. StudyBlue content can be accessed online or on mobile phone applications for major mobile platforms including iOS and Android.
You can use current lists of ESL flashcard sets that have been created already by users. You can either take advantage of the sets that are applicable to your study level or jump in and make custom sets for your needs.
Language software packages can only supplement a course in a language school. A software package can help to memorize new words and practice familiar grammar. If you want English words and grammar rules to develop into a coherent speech, it is preferable to study in a reliable language school with professional native teachers.